Mercedes Formula One driver Lewis Hamilton of Britain sings autographs after his arrival at the Albert Park circuit in Melbourne March 14, 2013, ahead of the Australian F1 Grand Prix. (Photo: Reuters)

Williams Formula One driver Pastor Maldonado of Venezuela signs autographs after arriving at the Albert Park circuit in Melbourne March 14, 2013, ahead of the Australian F1 Grand Prix. (Photo: Reuters)

Red Bull Formula One driver Sebastian Vettel (R) of Germany signs autographs after arriving at the Albert Park circuit in Melbourne March 14, 2013, ahead of the Australian F1 Grand Prix. (Photo: Reuters)

McLaren Formula One driver Jenson Button of Britain waves to fans after arriving at the Albert Park circuit in Melbourne March 14, 2013, ahead of the Australian F1 Grand Prix. (Photo: Reuters)

Ferrari Formula One driver Felipe Massa of Brazil signs autographs after arriving to the Albert Park circuit in Melbourne March 14, 2013, ahead of the Australian F1 Grand Prix. (Photo: Reuters)

Red Bull Formula One driver Sebastian Vettel (R) of Germany talks to a fan at the Albert Park circuit in Melbourne March 14, 2013, ahead of the Australian F1 Grand Prix. (Photo: Reuters)

Red Bull Formula One driver Sebastian Vettel of Germany exits his car after driving to the Albert Park circuit in Melbourne March 14, 2013, ahead of the Australian F1 Grand Prix. (Photo: Reuters)

Ferrari Formula One drivers Felipe Massa (L) and Fernando Alonso hold a steering wheel while posing with a real size Lego Ferrari Formula One car in Melbourne March 14, 2013, ahead of the Australian F1 Grand Prix. (Photo: Reuters)

Ferrari drivers Felipe Massa of Brazil (3rd R) and Fernando Alonso of Spain (back L) play with Lego cars with local children during a promotional event in Melbourne on March 14, 2013, ahead of the Formula One Australian Grand Prix on March 17. (Photo: AFP/Getty Images)

Red Bull Formula One driver Mark Webber of Australia puts a cap on the head of a schoolboy before a news conference in Melbourne March 13, 2013, ahead of the Australian F1 Grand Prix. The Australian Formula One Grand Prix is the first of the season and will be held on March 17. (Photo: Reuters)

Red Bull Formula One driver Mark Webber of Australia answers questions from schoolchildren before a news conference in Melbourne March 13, 2013, ahead of the Australian F1 Grand Prix. The Australian Formula One Grand Prix is the first of the season and will be held on March 17. (Photo: Reuters)